The "24V DC Cooling Fan" inner shield grille single spot welding welded mesh cover with the required hydraulic pressure is good shape after the outer ring into the mold, the 120 evenly distributed network cable is good, you can turn on the switch 120 Extension automatically weld (Note: the number of small grid is also applicable) in accordance with the specifications of nets can replace any removable mold. "24V DC Cooling Fan" outer shield grille touch welder controller using microcontroller integrated control systems, high-precision DIP switch, welding primary circuit water-cooled two-way thyristor control, forced through the water inside the transformer secondary times but other advanced technologies to better ensure the current output stable and reliable. "24V DC Cooling Fan" shield optimized design, highly conductive magnetic material, resulting in loss of equipment at no load is low, the power output of more robust, stable and longer life.